The Apple logo character isn't a real symbol, it's just a space from the Unicode private-use area (the 'anything goes' area that's not codified and is reserved for niche local uses) that Apple decided would render as the Apple logo in iOS and macOS, probably to allow them to draw their logo as text. It's not something that should be used in browsers or anything that can render outside of Apple's ecosystem. It's not a great sign that something this front-and-center, immediately apparent on any non-Apple devices, wasn't tested by them on any other platforms.